Jessica Kelly Siobhán Reilly (born July 18, 1977) is an English actress. Her performance in After Miss Julie at the Donmar Warehouse made her a star of the London stage and earned her a nomination for a Laurence Olivier Award for Best Actress of 2003. Reilly was born and brought up in Chessington, Surrey, England, the daughter of a hospital receptionist mother, and Jack Reilly, a police officer. She attended Tolworth Girls' School in Kingston, where she studied drama for GCSE. Her grandparents are Irish.
